Note that a variety of other Cavaillé-Coll organs appear in listings of future programs in coming weeks. An excellent website with details and photos of these instruments, plus many other organs in France, can be found at: Orgues en France. Sources for Cavaillé-Coll himself are found at: Aristide Cavaillé-Coll and Aristide Cavaillé-Coll, facteur d’orgues